二次元自励振動発生の一機構について(第2報)

概要

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To ascertain the propriety of our theory, a device for producing the oscillation was constructed, and the vertical component of the oscillation was recorded optically on a 35 mm running film simultaneously with the time and the displacement of the moving surface. The oscillation-loci described on the plane by the bar-tip were also recorded on a standing film. From these records, the relations of the period as well as the amplitude with the surface velocity became clear in principle. By substituting in the theoretical expressions some experimental values, we obtained approximate values of the coefficient of the friction and that of the restitution in our apparatus. The wave-figures theoretically constructed for any surface speed, when the two coefficients were given as above, coincided fairly well with those of the experiment.
一般社団法人日本機械学会の論文